Autonomous System details

AS19977

Mayer Brown LLP  ·  mayerbrown.com

United States

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AS19977 – Mayer Brown LLP

Field Value
Country United States
Website mayerbrown.com
Hosted domains 6
IPv4 addresses 2,048
IPv6 addresses 0
ASN type Business
Registry arin
Allocated 10 years ago on Aug 02, 2016
Updated 10 years ago on Aug 02, 2016

IP Ranges

Netblock Company Num of IPs
143.58.0.0/22 Mayer Brown LLP 1,024
143.58.4.0/22 Mayer Brown LLP 1,024
143.58.0.0/24 Mayer Brown LLP 256
143.58.1.0/24 Mayer Brown LLP 256
143.58.2.0/24 Mayer Brown LLP 256
143.58.3.0/24 Mayer Brown LLP 256
143.58.4.0/24 Mayer Brown LLP 256
143.58.5.0/24 Mayer Brown LLP 256
143.58.6.0/24 Mayer Brown LLP 256
143.58.7.0/24 Mayer Brown LLP 256

There are no known IPv6 addresses belonging to this network

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WHOIS Details

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                                                ASHandle:       AS19977
                                                OrgID:          AS19977
                                                ASName:         AS19977
                                                ASNumber:       AS19977
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 6 domain names hosted across 6 IP addresses on this ASN.

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IP Address Domain Domains on this IP
143.58.5.109 ██████████ 1
143.58.1.250 ██████████ 1
143.58.1.247 ██████████ 1
143.58.4.81 ██████████ 1
143.58.1.248 ██████████ 1
143.58.1.249 ██████████ 1

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Peers

There are 3 peers for this ASN.

Peers Name
AS1239 Cogent Communications, LLC
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Upstreams

There are 2 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3356 Level 3 Parent, LLC
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Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

7 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
143.58.5.73 AS19977 Mayer Brown LLP 0.94ms from Chicago, US
143.58.3.19 AS19977 Mayer Brown LLP 0.82ms from Chicago, US
143.58.0.1 AS19977 Mayer Brown LLP 0.35ms from Chicago, US
143.58.7.19 AS19977 Mayer Brown LLP 0.93ms from Chicago, US
143.58.4.1 AS19977 Mayer Brown LLP 0.57ms from Chicago, US
143.58.2.1 AS19977 Mayer Brown LLP 0.98ms from Chicago, US
143.58.1.73 AS19977 Mayer Brown LLP 0.74ms from Chicago, US

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
138.88.183.153 AS701 Verizon Business 2.92ms from Ashburn, US
39.96.105.217 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.27ms from Beijing, CN
157.240.71.249 AS32934 Facebook, Inc. 0.16ms from Dallas, US
199.16.99.73 AS7459 Grande Communications Networks, LLC 6.06ms from Dallas, US
88.67.133.9 AS3209 Vodafone GmbH 18.10ms from Frankfurt am Main, DE
154.221.98.169 AS17561 LARUS Limited 0.73ms from Hong Kong, HK
8.130.88.41 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.83ms from Jining, CN
47.136.30.249 AS5650 Frontier Communications of America, Inc. 5.54ms from Los Angeles, US
188.86.28.105 AS12430 VODAFONE ESPANA S.A.U. 0.76ms from Madrid, ES
180.193.205.169 AS9299 Philippine Long Distance Telephone Company 0.63ms from Manila, PH
38.180.231.153 AS58061 Scalaxy B.V. 0.26ms from Meppel, NL
115.108.243.41 AS4755 TATA Communications formerly VSNL is Leading ISP 0.77ms from Mumbai, IN
47.49.193.153 AS20115 Charter Communications LLC 15.71ms from Murfreesboro, US
58.208.117.9 AS140292 CHINATELECOM Jiangsu province Suzhou 5G network 5.91ms from Nanjing, CN
208.219.182.73 AS701 Verizon Business 1.44ms from New York City, US
35.140.9.73 AS33363 Charter Communications, Inc 11.91ms from Orlando, US
109.26.193.89 AS15557 Societe Francaise Du Radiotelephone - SFR SA 2.63ms from Paris, FR
190.154.220.73 AS14522 SERVICIOS DE TELECOMUNICACIONES SETEL S.A. (XTRIM EC) 2.46ms from Quito, EC
80.238.215.89 AS136907 HUAWEI CLOUDS 0.63ms from Riyadh, SA
189.86.234.153 AS4230 CLARO S.A. 0.88ms from Sao Paulo, BR
4.201.149.233 AS8075 Microsoft Corporation 0.18ms from Sao Paulo, BR
177.66.185.9 AS262502 FLYLink Telecom 8.45ms from Vinhedo, BR
111.51.65.25 AS9808 China Mobile Communications Group Co., Ltd. 10.07ms from Xi'an, CN
89.172.177.249 AS5391 Hrvatski Telekom d.d. 6.92ms from Zagreb, HR
85.148.145.169 AS5390 EuroNet 1.19ms from Amsterdam, NL

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 143.58.4.1
traceroute to 143.58.4.1 (143.58.4.1): 64 hops max, 52 byte packets
1 [AS174] 38.103.244.2 2.725 ms
2 *
3 *
4 *
5 [AS174] 154.54.6.37 2.067 ms
6 [AS174] 154.54.10.166 1.573 ms
7 [AS3356] 4.69.203.230 20.823 ms
8 [AS19977] 143.58.4.1 20.707 ms
Measurement taken from IPinfo ProbeNet in Providence, US
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS19977 at robtex.

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